MESON Chess Problem Database

Problem Display
PID: 275372 (3R2n1/2pQ1p2/1b3Rp1/2rNN1K1/4k1p1/4Pp2/p1P3rB/1B6 w - - 0 1)

Huberty, Antoine

British Chess Magazine, 1935

3R2n1/2pQ1p2/1b3Rp1/2rNN1K1/4k1p1/4Pp2/p1P3rB/1B6

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rgxc2
      • 2.Qxg4#
    • 1...Rd2
      • 2.Qxg4#
    • 1...Re2
      • 2.Qxg4#
    • 1...Rf2
      • 2.Qxg4#
  • Tries
    • 1.Sc3+?
      • 1...Kxe3
        • 2.Qd4#
      • 1...Rxc3!
    • 1.Sc4?
      • threat
        • 2.Rf4#
      • 1...Rxd5+
        • 2.Qxd5#
      • 1...Rxc2
        • 2.Bxc2#
      • 1...Sxf6
        • 2.Qe7#
      • 1...Rxc4!
    • 1.Sxg6?
      • threat
        • 2.Rf4#
        • 2.Qf5#
      • 1...Rgxc2
        • 2.Qf5#
      • 1...Rcxc2
        • 2.Qf5#
      • 1...Sxf6
        • 2.Qf5#
        • 2.Qe7#
      • 1...fxg6
        • 2.Re6#
        • 2.Qe6#
      • 1...Sh6
        • 2.Rf4#
        • 2.Re8#
        • 2.Qe8#
        • 2.Qe7#
      • 1...Se7
        • 2.Rf4#
        • 2.Qxe7#
      • 1...Rxd5+!
  • Keys
    • 1.Sxg4!
      • threat
        • 2.Rf4#
      • 1...Rxg4+
        • 2.Qxg4#
      • 1...Rxd5+
        • 2.Qxd5#
      • 1...Rgxc2
        • 2.Sf2#
      • 1...Rcxc2
        • 2.Sc3#
      • 1...Sxf6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(b);N_GUARD,P_SPINR(b),XP(B)::QAR2(I),XP(e)
    • R(b);N_GUARD::QAR2(I),XP(e)
  • Tries
    • Try
      • S(E);CHECK,P_SPINS(F)
      • Vars
        • K(d);P-FLIGHT,XP(D)::QAB1(I)
      • Refutation
        • R(f);N_PINS(F),XS(E)
    • Try
      • S(F);P_SPINS(E)
      • Threat
        • R1(H)
      • Vars
        • R(f);CHECK,OGATE,XS(E)::QAB1(I),XR(f)
        • R(b);OGATE,P_SPINR(b),XP(B)::B(A),XR(b)
        • S(k);N_GUARD,XR(H)::QAR(I)
      • Refutation
        • R(f);N_PINS(E),XS(F)
    • Try
      • S(F);P_SPINS(E),XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • R(b);P_SPINR(b),XP(B)::QAB1(I)
        • R(f);N_PINS(E),P_SPINR(f),XP(B)::QAB1(I)
      • Refutation
        • R(f);CHECK,XS(E)
  • Actual
    • S(F);P_SPINS(F),XP(e)
    • Threat
      • R1(H)
    • Vars
      • R(b);CHECK,OGATE,P_PINS(E),XS(F)::QAR2(I),XR(b)
      • R(f);CHECK,OGATE,XS(E)::QAB1(I),XR(f)
      • R(b);N_PINS(F),P_PINS(E),P_SPINR(b),XP(B)::S(F)
      • R(f);P_SPINR(f),XP(B)::S(E)
      • S(k);N_GUARD,XR(H)::QAR(I)
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